Bug 1426766 – CVE-2017-1000044 gtk-vnc: Incorrect boundaries check when updating framebuffer

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 1426766 - (CVE-2017-1000044) CVE-2017-1000044 gtk-vnc: Incorrect boundaries check when updating framebuffer

Summary:	CVE-2017-1000044 gtk-vnc: Incorrect boundaries check when updating framebuffer

Status:	CLOSED WONTFIX

Aliases:	CVE-2017-1000044

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20101129,repor...
Keywords:	Security

Depends On:
Blocks:	1426767
	Show dependency tree / graph

Reported:	2017-02-24 14:32 EST by Adam Mariš
Modified:	2017-05-12 03:50 EDT (History)
CC List:	19 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-05-12 03:50:19 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description Adam Mariš 2017-02-24 14:32:14 EST

gtk-vnc 0.4.2 and older doesn't check boundaries correctly when updating framebuffer which may result into memory corruption when rendering. Malicious server can crash VNC client or potentially execute code under privileges of user running VNC client.

Upstream patch:

https://git.gnome.org/browse/gtk-vnc/commit/?id=f3fc5e57a78d4be9872f1394f697b9929873a737

Comment 1 Adam Mariš 2017-02-24 14:35:30 EST

CVE has been requested from DWF.

Note You need to log in before you can comment on or make changes to this bug.